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From my experience, adjusting that cable can cause problems. On a 90 F150 I had with a 302, I adjusted the cable to get a higher idle speed. This in turn caused a very rough shifting condition with the transmission. There is some interrelation there. When I adjusted the cable back to the original setting. The transmission returned to the normal smooth shifting it had done before I "tried to fix something that was not broken".
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.
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